19997658

素因数分解:

$2^1\times 3^3\times {\mathrm{107}}^1\times {\mathrm{3461}}^1$

素因数の和:3579

約数の個数: 32

約数和(自身を含む): 44867520

約数和(自身を除く): 24869862

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 107, 214, 321, 642, 963, 1926, 2889, 3461, 5778, 6922, 10383, 20766, 31149, 62298, 93447, 186894, 370327, 740654, 1110981, 2221962, 3332943, 6665886, 9998829, 19997658]

約数ペア:

[(1, 19997658), (2, 9998829), (3, 6665886), (6, 3332943), (9, 2221962), (18, 1110981), (27, 740654), (54, 370327), (107, 186894), (214, 93447), (321, 62298), (642, 31149), (963, 20766), (1926, 10383), (2889, 6922), (3461, 5778)]